Burning brick



(No Model.)

C. P. T. KANDELER.

BURNING BRICK.

No. Z83,40-2.- Pa'tented'Augr 21 1883.

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o. r. THEODOR KANDELER, or CHICAGO, ILnINoIs.

BURNING BRICK.

SPEGIFICATION forming part of LettersPatent No. 283,402, dated August21, 1883.

Application filed May 5,1ss3. (Nu model.)

, which the following is a full description, reference being bad to theaccompanying drawings, in which- Figure 1 is a side elevation. Fig. 2 isa.- plan. Fig. 3 is a cross-section. Fig. 4 is a detail.

The objects of my invention are to provide an improved method of anddevices for burning brick progressively, which I accomplish by providingat fiista long kiln, or a kiln made 111 sections, with suitablefire-places and heat and fuel passages, so constructed that during theburning process the heat from one end of the kiln will be drawn througha long kiln or through a number of sections by means of a fan, which isto be moved as the work progresses, thereby utilizingheat andeconomizing fuel.

An important feature of my invention is the building of additionalsections of kiln from time to time, and thus progressively continuingthe process. or other material placed directly thereon, and

provide improved means for closing the openings for fuel at the top. hena part of the kiln is ready to be burned, the end to which sections areto be added is to be temporarily closed by means of wood or othermaterial which canbe removed easily. I also providea movable stage orplatform over the kiln to facilitate the feeding of the fuel.

That which I claim as new will appear from the appended claims.

-In the drawings, A represents akiln of brick piled ready to be burned.In laying up the brick in the kiln a suitable number of fireplaces, a,and passages 21, for heat and smoke, are to be provided.

a are transverse passages, into which the longitudinal passages 5 open.

d are vertical passages, extending from the places for the fire upwardthrough the body of the kiln,'througl1 which fuel may be introduced.

B is a suction-fan.

e is a tube one end of which communicates with one of the crosspassagesc, and the other I cover the kiln with stone end opens into the fan.That portion of the kiln which is between two of the cross-passages 0may be considered as a section of the kiln.

The sides, ends, and top of the kiln are to be closed, except thatopenings f are to be provided at the front end for the admission of airfor the fires, and the passages (I extend up through the top.

I cover the top of the kiln with blocks of stone or other suitablematerial. The stones which are over the openings (Z have holes throughthem, and each has a projecting rim around such hole, as shown in Fig.4.

9 represents such stones, and h the encircling rim.

1 are stones between the stones and, as shown, are provided withshoulders overlap- P g 9- j are caps which cover the openings throughthe stones 9, each having a handle. The covering is placed directly uponthe material in the kiln. rim h with sand the edges of the caps j, whenin place, will enter such sand, which will act as a seal, preventing theescape of heat or smoke from the fires through the passages d. C- is aplatform supported upon suitable standards, D, which platform extendsover the top of the kiln, and is carried out to a considerable distanceupon one side, to provide a place for the storage of fuel. The platformis supported upon wheels 7;, which travel upon a track, l, one on eachside of the kiln. Through that portion of the platform which is directlyover the kiln are openings m. As shown, there are five of these openingsm the distance between them being equal to the distance between twotransverse rows of the openings 11, so that the four openings at can atthe same time be brought over four rows of the transverse open ings d.

The stage or platform is designed as a place for fuel and to receive themen who feed the By filling the spaces around the fires, and it may becovercd,-if desired, for the protection of the workmen.

The operation is as follows: Suppose the kiln to have been built fromthe left-hand end, as shown in Fig. 2, to the line a. The end of thekiln at n is to be well closed, as well as the sides and top and all ofthe front, except passages or openings f at the bottom. The bricks, ifgreen, can now be dried by building suit- IOO able fires in theoross-passages 0. Vhen the bricks have been sufficiently dried, the fanis to be connected with a cross-passage c, as shown in Fig. 2, and theends of the remain ing passages c are to be closed. Fires are then to bebuilt in the passages at the front end of the kiln, and, the fan beingin operation, the heat and smoke will be drawn through all of thesections forward of the fan, the smoke being discharged through thesmoke-pipe E. At first fire will be supplied only to the furnaces orfire-places near to the front end of the kiln, and when the fires arebuilt there will be intense heat, and, all the heat being drawn throughthe kiln by the fan, all the heat, or nearly all, will be utilized inheating the brick. Workmen, by removing the caps j, can see thecondition of the fires within the kiln and the condition of the brick,and through the opening d can replenish the fires. When the bricks atthefront of the kiln have been sufficiently burned, fires are to bestarted in the adjoining places provided therefor, and as often as itmay be necessary the stage or platform is to be moved along toward thefan. After the fires have been allowed to go out in the front part ofthe kiln the heat from the cooling brick will be drawn by the fanthrough the fires, and thus the heat remaining in the brick after beingburned will be largely utilized. This process of building new fires inthe places, a, prepared therefor in a the kiln, and moving the stagealong as the burning of the sections one after another is completed, isto be continued until all the sections have been burned. At the sametime additional sections may,ifdesired,bebuiltbeyond the fan, one ofwhich, (marked G,) as shown, is partially completed. \Vhen a sufficientnumber of new sections have been prepared, and all of those before builthave been burned, the fan can be moved forward and placed again inposition ready for continuing the operation as to the new sections,communication being opened by the removal of I the wall at the line it.

There are many advantages resulting from the use of my method anddevices as compared with other ways of burning brick, among which may bementioned the following: .There will be great saving both in fuel andlabor, nearly all the heat being utilized. The draft and the intensityof the fire can be better regor the kiln may be curved.

ulated. The burned brick can remain stored where burned without handlinguntil wanted for use without interfering with the progress of the work.Additional sections can be added to the kiln while those already builtare being burned.

I have only referred to the burning of brick 5 but there are otherarticles or materials to the burning of which my method and improveddevices are applicable, and I do not intend to limit myself to their usein burning brick alone.

In burning the added sections it will be usually advisable to move thefan only one section at a time; otherwise too much moisture may be drawnfrom the undried brick to the fan.

New sections maybe added inastraight line, I cover thejoints in the topof the kiln with clay.

I am aware that annular furnaces are in use for burning brick, the samebeing provided with a continuous compartment, into different portions ofwhich bricks are introduced from time to time. I The kiln proper in thiscase being always the same, I do not claim this con struction. I

I am not aware that a kiln has ever been used which could be extendedindefinitely by adding new sections thereto.

Drying-fires will not be required except at first. A crane may becombined with the platform for elevating fuel. The platform might besupported wholly upon one side of the kiln, extending over the same.

F, Fig. 2, indicates the position which an engine may occupy to drivethe fan.

\Vhat I claim as new, and desire to secure by Letters Patent, is asfollows:

1. The process of burning material in a progressive burning and coolingkiln, and adding sections of new kiln, together with side walls andcovering, to the kiln whilea portion is being burned, substantially asand for the purpose specified.

2. In combination with aprogressive burning and cooling kiln, a platformover and above the top of the kiln, for the purposes specified.

0. F. THEODOR KANDELER. \Vitness es E. A. Wnsr, ALBERT 'H. ADAMS.

